In summer 2015 we moved the scoreboard to a new custom built shed, which housed a new solar panel power supply. As part of the commissioning project, we needed to replace the d-link wireless access point that used a 12v AC (weird!) power supply to a tp-link wireless access point that would work at 12v DC.
As we are using DNS allow the laptop to connect to the Raspberry PI, we need to setup the wireless controller DHCP settings to distribute the IP address of the Pi.
Other than that, nothing complex is required from the wireless access point, other than it needs a LAN port to plug the Raspberry Pi in to. We suggest setting up WPA2 security on the wireless network, which makes sure that only the scorer can connect to the scoreboard URL.